Producer Glenn Gamble said that it was both fan made and used old footage of the stealth-action first-person shooter, and that the game now looks "a hundred times better".

"Essentially it was old footage, it was yes, from The Walking Dead and it was from another interview I had done, but the game's in development," Gamble told Digital Spy.

"It's going to continue to get better. You saw the graphics [at a press event in London], I know that was a big deal, you saw them, they looked a hundred times better than what they did.

"A game is constantly in development, time is the ultimate enemy of any game. If we had huge budgets and four years to run, games would look a lot better and visually more stunning. Sometimes you have to show what you got to get people interested and get the ball rolling."

The Walking Dead: Survival Instinct is a survival stealth-action game with light management elements, following brothers Daryl and Merle before the ends of the AMC television series.